Breast lift



April 18, 1933. J. J. WALLACE 1,904,637

BREAST LIFT Original Filed May 6, 1931 3 Sheets-Sheet 1 66 1 def/ ry d Wallace April 18, 1933. 1 J WALLACE 1,904,637

BREAST LIFT Original Filed May 6. 1931 3 Sheets-Sheet 2 8 awe/Mom Jeffrey J VI aZZac'e April 13, 1933- J. J. WALLACE 1,904,637

BREAST LIFT Original Filed May 6, 1931 s Sheds-Sheet s ,Fi q.3.

' JEFFREY J Mum c5.

Patented Apr. 18, 1933 UNITED STATES PATENT OFFICE JEFFREY JOHN WALLACE, 0F AMITE, LOUISIANA, ASSIGNOB-TO G'ULLEI'T GIN COMPANY, OF ANTI-E, LOUISIANA BREAST mm A original application; filed Kay 6,

This application is a division of my" conding application, Serial No. 535,523, filed May 6,1931, for cotton gin.

The object of the invention to which the present application is limited is to provide a breast lift for cotton gins which can be raised to inoperative position very readily and locked in such position.

Another object of the invention is to provide cotton gins of this type with means for substantially counterbalancing the breast lift and other mechanism carried thereby in order to facilitate the raising of the breast manually whenever desired.

()ther objects of the invention will become apparent as the detailed description thereof proceeds; V

In the drawings:

Figure 1 is an end elevation of the right hand end of a double rib huller gin, with the cotton box in ginning position;

Figure-2 is a similar elevation of the same gin, with the cotton box in raised position;

Figure 3 is a broken front elevation of the said cotton gin, with parts omitted for clearness of disclosure; and y Figure 4 is a transverse vertical section taken on the line 44 of Figure 3.

As shown in the drawings, the cotton gin forming the present invention includes standards 1 and 2, forming the end supports for the gin mechanism. These standards are connected at the lower end in properly spaced apart positions by means of the angle iron 3; and are also connected at their upper ends by the angle iron 4 box is ,hingedly connected. Only one angle iron 3 is shown in the drawings, but it is to be understood that the other parts of the standards will be similarly secured to each other to form a rigid frame work.

The other ends 5 .and 6 oflthe cotton box 7 are connected by a channel bar 8 which carries the rib bar and the cotton box and castings. In order to pivot the cotton box adjustably to the frame work of the gin, the castings which form the ends 5 and 6 of the cotton box have the trunnion members 9 and 10 suitably bolted thereto. As shown in Figure 3 of the drawings, each of the trunto which the cotton with a 1931, Serial No. 535,538. Divided and this appiicatibn filed Kay 20,

Serial 1T0. 812,604.

than the trunnions 13 and 14, and there is a slight space between each of the members 9 and 10, and the bearing members 17 and 18. This spacing is to permit the lateral adjust ment of the cotton box as a Whole along the axis of the trunnions 13 and 14.

To provide for the aforesaid lateral adjustment, the apertures 15 and 16 are centrally bored and screwthreaded to receive the adjusting screws 19 and 20 which are provided with lock nuts 21 and 22, respectively. It will be obvious from Figure 3 of the drawings that the end members 5 and 6, along with the cotton box supported thereby, can be adjusted to any desired position laterally of the gin frame work, and can be locked in this adjusted position by means of the lock nuts 21 and 22. This means that the entire cotton box can be adjusted to place the saws in the center of the spaces between the ribs, and can be locked in this position.

The huller roller shaft 23 is suitably jour naled in bearings formed in the end castings 5 and 6; and this shaft projects through the casting 5 and has the driving pulley 24 keyed thereonor otherwise suitably secured there .to. The pulley 24 is driven by means of a belt 25 (see Figure 2) extending over idler, pulleys 26 and 27, rotatably mounted on a bracket 27 secured to the angle iron 4, and around the pulley 28 suitably secured to the saw shaft 29.

The huller roller 30 is fixed to the shaft 23, within the gin box and is raised and lowered with the gin box by means of the lever 31 and linkage mechanism to be described hereinafter. The shaft 23 is also provided V-grooved braking pulley 32, secured to said shaft by means of a set screw 33 passing through a hub 34 formed on the braking pulley 32.

Immediately above the braking pulley 32,

a brake shoe is pivoted at one end of the casting 5, and has its lower edge curved to correspond with the curvature of the braking pulley 32. A short section 36 of braking material is shaped to fit the lower edge of the brake shoe 35, and is ll-shaped in cross section to fit the ll-shaped groove in the braking pulley 32. Preferably, the section 36 is made of such material as will trictionally grip the V-shaped periphery of the pulley 32 and bring it quickly to a stop an arm 37 extends downwardly from the eating 5 and has a laterally projecting lug 8 formed thereon. A tension spring 33 has ne end hooked on to an eye 410 at the end the lug 38, and has its other end hooked through an aperture d1 formed near the "free end of the brake shoe 35. lit will thus be apparent that the tension. spring 39 normally holds'the brake shoe 35 with its friction grip lining 36 in braking contact with the V- shaped groove of the pulley 32.

The other end casting 6 is similar in shape to the casting 5 and is provided with an arm 42 similar to the arm 37?0 A cross bar 43 connects the arms 37and l2 to each other, and serves as part of a means for moving the cotton box to and from operative positions relative to the saws oi the cotton gin. The movement referred to is efiected by means of the handle 31 which is fixed to a squared end of a shaft 44, suitahly journaled in the standards 1 and 2. The handle lever 31 is preferably fixed at the side of the gin opposite to that on which the braking mechanism for the huller roller is mounted. However, it is immaterial which end of the gin it is mounted on so long as it is used in convenient position to rotate the shaft 4:4.

The shaft 44 has suitably secured thereto a bell crank 45 having the free end of one of its arms l6 connected to a strong tension springd'l, which has its other end hooked on to a lug l8 projecting from the framework, The other arm 49 of the bell crank 45 has its free end pivoted to a link 50 which has its other endpivotally connected to a bracket 51 extending from a U-shaped plate 52 which straddles the cross bar 43 where it projects outwardly beyond the left hand end of the gin as shown inFigure 2.

The arm 4C9 is bifurcated where it receives the pivoted end of the link 50, the lower end J of which is recessed to form a stop shoulder 53'adapted to contact with the rear edge of the arm ii) to limit the outward movement of the linkage under the tension of the spring 47.

The tension spring 47 a cts substantially as a counterbalance for'the cotton box 7 and the mechanism carried thereby, in order to relieve the operator from the manual exertion in raisin the heavy box without a counterbalance. t will be, apparent from Figure 2 of the drawings that the arm 49 of the bell crank, and the link 50 connected to the end or this arm, constitute a toggle linkage for holding the cotton box locked in open position, as is common with all toggle linkages,

It will be apparent from Figure 2 of the drawing that when the cotton box 7 is in the open position shown therein, the spring 39 pulls the brake shoe 35 downwardly against the brake pulley 32. Tn order to release this I When the cotton box is moved away from this closed position, the tension on the belt slackens and the end 55 of the brake shoe 35 slides oil the edge 54: on the frame and is pulled into loraking position by means of the spring 33, thereby stopping the huller roller 30 from continuing its rotation and throwing cotton from the box.

A conveyor trough 56 extends directly helow the huller roller 30 and is provided at its gplposite ends with arms 57 and 58, suitably T ed to brackets 59 and 60, respectively, secured to the standards 1 and 2. An endless screw 61 is journaled in the-trough 56 and serves to move hulls and foreign matter discharged from the cotton box along the trough and to the end of the gin where it falls into a suitable receptacle onto an endless con veyor movable below the gin :tloor and under a battery of gins as is common in this art.

The shaft 62 of screw 61 has a pulley 63 fixed thereto; and a belt 64- passing over pulley 6 3 and a pulley 64- on the saw shaft 23 serves to impart rotation from the saw shaft to the screw shaft 62.

The bottom of the trough 56 is perforated to form a screen through which cotton seeds, which are some times discharged with the hulls, are screened out and fall into a seed hopper 66 arranged directly helow the con veyor hopper or trough 56,

What I claim is:

1. In a cotton gin, a frame having a cotton box pivoted thereto'and normally held by gravity in operative position, arms projecting downwardly from said box, a cross bar connecting said arms, a shaft rotatable on said frame, a bell crank fixed to said shaft, a link pivoted at one end to an arm of said bell crank and at its other end to said cross bar, said link and arm being provided with cooperating stop elements to limit the swing of said link in one direction around said am,

and a spring connecting the other end of said 7 bell crank to said irame for substantially counterbalancing said box.

2. In a cotton gin, a sup orting frame, a cotton box pivoted to said rame to hang by gravity normally in operative position relative to the saws of the gin, a shaft journaled 10 in said frame, a lever for rotating said shaft,

a bell crank fixed to said shaft, a link pivoted at one end to an armof said bell crank and pivoted at its other end to said box, cooperative stop means on said link and arm to 1 limit the relative rotation of said link and arm in one direction, and yielding means connecting the other arm of said bell crank to said frame for substantially counterbalancing said box.

In testimonly whereof I aflix my signature.

J'EF REY J OHN WALLACE. 

